HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 449

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Table C-1 (d) Port 1 Port Read (Pin P1
Mode
1, 2, 3, 4
7
P1
3
Setting
BRLE = 1
BRLE = 0
DDR = 0
DDR = 1
Figure C-1 (d) Schematic Diagram of Port 1, Pin P1
DDR = 0
DDR = 1
3
RP1
)
439
Port Read Data
Pin value
Pin value
DR value
Pin value
DR value
Q
Q
P1 DDR
WP1
P1 DR
WP1D
3
Reset
Reset
C
C
3
Mode 1, 2, 3,
or 4
R
R
D
D
WP1D:
WP1:
RP1:
System control
register 1, bit 3
3
BREQ to CPU
Q
BRLE
Write to P1DDR
Write to Port 1
Read Port 1